A theoretical model of a batch kraft pulp digester is developed that predicts, ~ priori, the lignin content distribution, the carbohydrate content distribution, and the effective alkali concentration distribution within ...

Modern forestry practices now include the use of many controlled release products, such as herbicides, pesticides fertilizers, superabsorbents, growth stimulants and animal repellents. Optimal use of these devices requires ...

While the commercial application of polymeric composite materials is increasing, methods of processing composites are becoming more complex and cost prohibitive. Several in situ monitoring techniques have been proposed to ...

Various investigators have noted that small particles at an interface exhibit a special tendency to aggregate. The most common manifestations of this phenomenon are the formation of an observable surface coagulum and the ...

A new polymer combining the processing advantages of epoxy resins with the superior thermal performance of the dicyanate resins was developed for use in bonding aramid honeycomb core composites. Dual-stage curing to meet ...

The Chemical Reactor Design Tool (CRDT) is a set of computer programs that solves the equations describing common chemical reactor models. The types of reactors that can be modeled include batch reactors, continuous stirred ...

Elastic and inelastic light scattering techniques were used to explore the processes of Knudsen evaporation, thermophoresis and gas/droplet reaction related to single microparticles. The reaction between single titanium ...

A significant portion of the population suffers from difficulty in swallowing, known as dysphagia, including 12 to 13% of hospitalized patients and 40% of nursing home residents. Dysphagia can make it impossible for a ...

The role of electrostatic properties and particle shape on toner flotation is investigated. Toner electrostatic properties, as measured by the zeta potential, are found to have little correlation on floatability due to the ...

Laser printers and copy machines produce an increasing quantity of difficult-to-recycle paper. In the last several years, the need for an effective process to de-ink the toner has prompted a number of facilities to try ...

Ratio fluorescence microscopy was used to image and measure the intracellular concentration of free calcium ion, (Ca$\sp{++}\rbrack \sb{\rm i}$, in single human platelets during attachment and spreading on several ...

High performance prepreg systems used in the airplane industry are proprietary and as a result, issues or problems concerning prepreg handling and composite performance have not been understood by the prepreg user and ...

This work presents the construction and application of a line-imaging Raman spectroscopy instrument for use with electrochemical systems. Line-imaging spectroscopy is able to collect spatially resolved spectra along a ...

Many microelectromechanical systems incorporate magnetic materials such as electrodepo sited NiFe in electromagnetically driven microactuators. In these applications, the compositional structure of the NiFe deposit has a ...

Steric stabilization of colloidal particles occurs through the presence of a layer of adsorbed polymer, and can be important in a number of activities such as paint formulation, treatment of waste water, and drug delivery. ...

Detailed knowledge about the single-pair interactions between a rigid micro-particle and a liquid drop or air bubble immersed in some fluid is one way to predict and/or design the ensemble behavior of mixed colloidal ...

Polymeric composite materials have been widely utilized to take advantage of their large specific strength and stiffness. These characteristics have made them attractive for use in aerospace applications as containment ...